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    1   /**
    2    * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
    3    */
    4   // stolen from XPath Explorer (http://www.xpathexplorer.com)
    5   package net.sourceforge.pmd.cpd;
    6
    7   import javax.swing.*;
    8   import java.awt.Component;
    9   import java.awt.Container;
    10  import java.awt.GridBagConstraints;
    11  import java.awt.GridBagLayout;
    12  import java.awt.Insets;
    13
    14  public class GridBagHelper {
    15
    16      GridBagLayout gridbag;
    17      Container container;
    18      GridBagConstraints c;
    19      int x = 0;
    20      int y = 0;
    21      int labelAlignment = SwingConstants.RIGHT;
    22      double[] weights;
    23
    24      public GridBagHelper(Container container, double[] weights) {
    25          this.container = container;
    26          this.weights = weights;
    27
    28          gridbag = new GridBagLayout();
    29          container.setLayout(gridbag);
    30
    31          c = new GridBagConstraints();
    32          c.insets = new Insets(2, 2, 2, 2);
    33          c.anchor = GridBagConstraints.EAST;
    34          c.fill = GridBagConstraints.HORIZONTAL;
    35      }
    36
    37      public void add(Component component) {
    38          add(component, 1);
    39      }
    40
    41      public void add(Component component, int width) {
    42          c.gridx = x;
    43          c.gridy = y;
    44          c.weightx = weights[x];
    45          c.gridwidth = width;
    46          gridbag.setConstraints(component, c);
    47          container.add(component);
    48          x += width;
    49      }
    50
    51      public void nextRow() {
    52          y++;
    53          x = 0;
    54      }
    55
    56      public void addLabel(String label) {
    57          add(new JLabel(label, labelAlignment));
    58      }
    59
    60  }
    61